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UNITED STATES PATENT OFFCE.

ABEL BRADVAY, OF MONSON, MASSACHUSETTS.

MACHINE FOR SHAVING SHING-LES.

Specication of Letters Patent No. 9,130, dated July 20, 1852.

To all whom 'it 'ma/y concern:

Be it known that I, ABEL BRADWAY, of Monson, in the county of Hampdenand State of Massachusetts, have invented a new and Improved Machine forDressing Riven Shingles; and I do hereby declare that the following is afull and exact description thereof, reference being had to theaccompanying drawings, making part of this specification, in which-Figure l, is a plan of my improved machine for dressing shingles; Fig.2, a longitudinal vertical section thereof, in the line of Fig. l; Fig.3, a transverse vertical section of the same, in the line y, y, of Fig.l; Fig. 4, a transverse vertical section, in the line e, e, of Fig. l;and Figs. 5, and 7 are views of portions of the machine det-ached.

Like letters refer to corresponding part-s in all the figures. t

The movements of my improved machine for dressing riven shingles, areplaced in an oblong frame constructed in any usual manner. A bottomlessrectangular box E, for the reception of the riven shingles to beoperated upon, is secured to the top of the frame, a little one side ofits center. lVhen placed in the said box E, the riven shingles rest uponan elastic bed nF, which is supported by two or more springs (Z, (Z,that are secured to, and rise above the cross piece D.

A lug 71 of the shape shown in Fig. 2, projects from the rear end of thesaid bed F, into a mortise in the cross piece J, and is embraced by aloop z', rising from the bottom of the said mortise-or other equivalentfastening, which will allow the bed to rise and fall freely, and preventit from being drawn lengthwise from the same. A sliding plate C, havinggrooves in its edges, is supported by the ledges or ways a., a, whichare secured to the side beams of the frame, and is reciprocated by thepitinan B, connected to a crank on the shaft A. The plate C, passesimmediately below the lower edges of the sides of the shingle-box E. Arecess is cut out of the front end of the plate C, of a little greaterwidth, and somewhat greater length, than the elastic bed F. rl`he inneredges of the legs p, p, formed by cutting the recess out of the plate C,are on a line with the inner sides of the box E; and the end le, of thesaid plate C, between the legs p, p,

when the plate is drawn back to its extreme limit of motion-is in a linewith the inner side of the rear end of the said box. Consequently, thefront end of the bed F, will be forced by its springs a short distanceup between the legs p, p. The rear end of the said bed F, will beprevented from being forced up between the legs p, Z9, by the projectionof the lug 7i, beyond the end 7c, of the sliding plate C, when the saidplate is drawn back to its extreme limit of motion.

Tapering patterns 0,' c, corresponding with the size and shape of thelongitudinal section of a shingle, are formed on the upper a'nd lowersides of the inner edges of the aforesaid legs p, p, which projectforward from the sliding platform C. The said shingle patterns c, o, areembraced by two knives e, e, placed opposite to each other, and securedto elastic arms f, f, which are secured, to and project from the crosspiece H, of the frame. The said knives e, e, are secured to their armsf, f, by means of slots formed in the arms and set screws passingthrough the same into the knives. A roller 5, is placed between theupper knife e, and the front end of the box E, to bear upon the shingleswhile being operated upon, and to form the mouth piece to the saidknife.

rlhe front end of the bed F, bears upward against the shingles just infront of the lower knife e, and forms t-he mouth piece to the saidknife. The opening between the lower edge of the front end of theshingle box, and the elastic bed F, must be of sufficient depth to allowthe thickest shingle to pass through it to the roller b; but not ofsulicient depth to allow the passage at the same time of two thinshingles through the same.

The thickness of the end 7c, of the sliding plate C, should be less thanthe thinnest shingle, so that as it is forced forward, it will never actupon more than one shingle at a time.

The operat-ion of my machine is as follows: Shingles having been placedin the box E, and motion imparted to the driving shaft A, the bottomshingle in the said box, will be carried forward by the end 7c, of thesliding plate C, and brought in contact with the knives e,- e; the saidknives being governed in their positions by the patterns c, c, and theinward pressure exerted by their elastic arms f, f, will shave theshingle, as it is pressed against them, to the proper tapering'shape,and discharge lthe same at the open space between the knife arms f, f.Should a riven shinglebe too thin to be acted upon by the knives at itsthickest4 part, in shingle machines of the usual construction, theupward pressure of the bed F, in my machine, will in all cases'insure aperfect finish to the upper side of a shingle by bringing the same intoclose Contact with the roller b, andthe upper knife.

Having thus fully described my improved machine for dressing rivenshingles, what

